Performance Comparison of Band-limited Baseband Synchronous CDMA Using between Walsh-Hadamard Sequence and ICA Sequence
نویسندگان
چکیده
Performance of band-limited baseband synchronous CDMA using the orthogonal Independent Component Analysis (ICA) spreading sequences is compared with that using the Walsh-Hadamard sequences. The system we focus on here is where the transmitted signal powers after passing band-limiting filter are not controlled. The orthogonal ICA sequences are generated by ICA. We use ICA not as separator for received signal but as generator of spreading sequences. These performances are also compared with that in the band-unlimited system using orthogonal sequences. We calculate Bit Error Rates (BERs) of these systems by numerical simulation. The quantities BERs in the band-limited baseband systems are lower than that in the band-unlimited baseband system. However, BER in the band-limited system using the orthogonal ICA sequences is much lower than that using the Walsh-Hadamard sequences.
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